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Finding the Fourth Proportional to 774,886.66, 1,069,339.53 and 435,351.94

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Solution

The fourth proportional to 774,886.66, 1,069,339.53 and 435,351.94 is: 600,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,886.66 : 1,069,339.53 = 435,351.94 : x
  2. Step 2: Convert to fraction form
    774,886.66/1,069,339.53 = 435,351.94/x
  3. Step 3: Cross multiply
    774,886.66x = 1,069,339.53 × 435,351.94
  4. Step 4: Simplify right side
    774,886.66x = 465,539,038,904.19
  5. Step 5: Solve for x
    x = 465,539,038,904.19/774,886.66
  6. Step 6: Final answer
    x = 600,783.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.